参数资料
型号: UDA1342TSDB-T
厂商: NXP SEMICONDUCTORS
元件分类: 消费家电
英文描述: Audio CODEC
中文描述: SPECIALTY CONSUMER CIRCUIT, PDSO28
封装: 5.30 MM, ROHS COMPLIANT, PLASTIC, MO-150, SSOP-28
文件页数: 18/48页
文件大小: 304K
代理商: UDA1342TSDB-T
2000 Jul 31
25
Philips Semiconductors
Product specication
Audio CODEC
UDA1342TS
9.19
Silence detector switch
A 1-bit value to enable the silence detector.
Table 38 Silence detector switch
9.20
Mute
Three 1-bit values to enable the digital mute. Bit MT is the
master mute, using bit MTA the signal from the digital
interface can be soft muted when the DAC mixer is
enabled and using bit MTB the signal from ADC can be
soft muted.
Table 39 Mute
9.21
Quick mute mode
A 1-bit value to enable the quick mute function of the
master mute.
Table 40 Quick mute mode settings
9.22
De-emphasis
A 3-bit value to enable the digital de-emphasis filter.
Table 41 De-emphasis settings
9.23
ADC input amplier gain
Two 4-bit values to program the gain of the input
amplifiers. Bits IA applies for input amplifier A and bits IB
to input amplifier B.
Table 42 ADC input amplier gain settings
SDS
FUNCTION
0
disable silence detector
1
enable silence detector
MT
MTA
MTB
FUNCTION
0
no muting
1
muting
QM
FUNCTION
0
soft mute mode
1
quick mute mode
DE2
DE1
DE0
FUNCTION
0
no de-emphasis
0
1
de-emphasis at fs = 32 kHz
0
1
0
de-emphasis at fs = 44.1 kHz
0
1
de-emphasis at fs = 48 kHz
1
0
de-emphasis at fs = 96 kHz
IA3
IB3
IA2
IB2
IA1
IB1
IA0
IB0
AMPLIFIER GAIN (dB)
0000
0
0001
3
0010
6
0011
9
0100
12
0101
15
0110
18
0111
21
1000
24
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